Email is not secure unless it is a closed system. So even if she emailed it to herself it could be vulnerable. Email traffic can travel thru many hands before reaching it's destination. If you want to risk that such sensitive info won't be skimmed off at any point at least realize it is a risk.</>

I would tell her in the future to either use a service like Dropbox and transfer her files there or put the files on a flash drive and bring that drive home.

You do realize the personal info is now also saved on the scanner's harddrive?

Highly unlikely. My scanner at work doesn't save anything, everything is sent to the attached computer. I don't think it even has a hard drive installed.